I have an idea that if Grayson Hall herself wanted to stop an insanely strong monster from strangling somebody, she wouldn't have had to resort to psychology. But I guess attacking the monster where it would hurt the most would be too indecorous for Dark Shadows. So Julia reminded Adam that he loved Barnabas, and in the short run, that worked, but in the long run, it may not have been such a good idea for him to get that particular reminder at that particular time.
I'm wondering how Adam would have heard the word "kill" before. From the way he kept repeating it, not as if he were trying to figure it out but rather as if he knew what it meant, I guess he has heard it - but down there in the cell, how would he have heard that word? From Willie, maybe - but still, how would Adam know what it meant? Incidentally, if Barnabas dies, what happens to Adam? Is Barnabas still providing Adam's life force? And if so, what happens to Adam when Barnabas goes cruising into the past?
When Elizabeth said, "I don't know what to believe," that was beautifully done by Joan Bennett. I really was reminded of the times when the act of thinking was just beyond me.